Serological
a. 血清学的
🗣️ 情景例句
You know, when I was your age,
要知道 ，当我像你这么大的时候，
Me too. I was hoping we could finish copying this report today.
我也希望如此，我本来希望今天我们能复印完这份报告。
Ever since, people have had difficulty in deciding whether the craft should be ranged among ships,
自那以后，人们很难决定是否应该将这种运载工具列为轮船、